.app-source {
  position: fixed;
  bottom: 20px;
  right: -13px;
  font-size: 12px;
  border-radius:3px;
  background-color: rgba(#000, .7);
  border: 1px solid #000;
  z-index: 9999;
  transition: all .3s;
  padding-right: 13px;
  a{
    color: #FFF;
    padding: 5px 15px;
  }
  &:hover {
    right: -8px;
    // padding: 0 5px;
    background-color: rgba(#000, .9);
  }
}